{"p":"can-20","op":"mint","tick":"can","amt":"1000","rows":[{"df":"qa","content":[{"q":"How does blockchain technology address the privacy and security challenges in data storage and transmission?","a":"Decentralized storage: Blockchain technology uses distributed node storage to avoid the security  risks posed by centralized storage. Each node stores a complete copy of the data, and once the data is recorded on the blockchain, it spreads throughout the network, ensuring the security and reliability of the data."}]}],"pr":"014d9c09e5a16971d40c3c1a75bd9f80234293c13cf1dac8cdde088e06b769fa"}